Testing device and method for steering joystick system
By designing a test device for the steering joystick system, using solenoid valves and counters to record the number of toggles, the problem that the existing technology cannot detect the life of the steering joystick is solved, and the evaluation of the mechanical performance and service life prediction of the steering joystick is achieved, and the improvement of the improvement of the mechanical performance of the steering joystick is achieved. The accuracy and safety of the detection are carried out.
Patent Information
- Application Number
- CN202411351657.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-01-03
AI Technical Summary
The existing detection methods cannot directly detect the life of the entire system of the steering joystick, resulting in problems such as steering joystick failure, poor contact or automatic jump allergy during use, resulting in traffic accidents.
A test device for steering joystick system is designed, including control components and mechanical movement components. The reciprocating movement of the cylinder piston rod is controlled through solenoid valves, and the toggle buckle and steering joystick are driven toggle left and right, and the number of toggles is recorded using a counter. , to evaluate the mechanical properties and service life of the steering joystick.
The device can simulate the working mode of the steering joystick, accurately record the number of toggles, evaluate its mechanical properties and service life, prevent traffic accidents, and improve detection accuracy and reliability.
Smart Images
Figure CN119246109A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of automobile technology, and in particular to a testing device and method for a steering joystick system. Background Art
[0002] Cars need to turn on the turn signal to alert surrounding vehicles when changing lanes, overtaking, or turning. The turn signal switch is inseparable from the turn signal lever (steering joystick). Usually, when a car is in use, various problems such as steering joystick failure, poor contact of the joystick, and the joystick automatically rebounding too sensitively may occur, which may cause the turn signal to fail to turn on, thereby causing traffic accidents.
[0003] Since the mechanical life strength of the steering lever, the life strength of the steering paddle switch and the strength of the turn signal line control system cannot be directly tested, the existing testing methods cannot detect the life of the entire steering lever system. Summary of the invention
[0004] The present application provides a testing device and method for a steering lever system, so as to solve the problem that the service life of the entire steering lever system cannot be detected.
[0005] In a first aspect, the present application provides a testing device for a steering lever system, the device comprising a control component and a mechanical motion component, the control component comprising a solenoid valve and a counter, the mechanical motion component comprising a cylinder, a steering lever and a toggle button, the cylinder being connected to the toggle button and the solenoid valve, the toggle button being connected to the steering lever, and the counter being connected to the solenoid valve, the toggle button and the steering lever respectively;
[0006] The solenoid valve drives the piston rod of the cylinder to perform reciprocating motion by controlling the on and off of the air circuit, and the steering lever is moved left or right along with the reciprocating motion of the piston rod. The solenoid valve and the toggle button send out a pulse signal according to the movement of the piston rod, and the counter calculates the number of left and right movements of the steering lever according to the pulse signal.
[0007] Optionally, the control component includes a relay; the relay is connected to the solenoid valve and is used to control the power on or off of the solenoid valve according to a control instruction.
[0008] Optionally, the control component also includes a timer; the timer is connected to the solenoid valve and is used to energize the solenoid valve according to a set cycle time, so that the solenoid valve controls the frequency of the reciprocating motion of the piston rod according to the cycle time.
[0009] Optionally, the counter includes a left counter and a right counter, and the left counter and the right counter are respectively connected to the relay, and are used to control the relay to be disconnected when the difference of the count values is greater than a set threshold.
[0010] Optionally, when the steering joystick is moved to the left after returning to its position, the right counter records a right turn, and when the steering joystick is moved to the right after returning to its position, the left counter records a left turn.
[0011] Optionally, the piston rod drives the toggle button to perform reciprocating motion, and the toggle button transmits force to the steering lever to enable the steering lever to be toggled left and right.
[0012] Optionally, the device further comprises an adjustment plate, which is located on a fixed frame of the device, and the steering lever is arranged at a set position on the adjustment plate, wherein the set position is used to enable the left and right movement of the toggle button to trigger the turn signal of the steering lever.
[0013] In a second aspect, the present application provides a method for testing a steering joystick system, the method comprising:
[0014] The on-off of the gas circuit is controlled by the solenoid valve, driving the piston rod of the cylinder to make reciprocating motion;
[0015] The piston rod drives the toggle button to move back and forth, and controls the steering lever to move left and right;
[0016] According to the pulse signals sent by the solenoid valve and the toggle button, the counter calculates the number of left toggle times and right toggle times of the steering lever;
[0017] When the steering lever system fails, the number of left-movement times and right-movement times of the steering lever are output.
[0018] Optionally, the on-off of the gas circuit is controlled by a solenoid valve to drive the piston rod of the cylinder to perform reciprocating motion, including:
[0019] By closing or opening the relay, the solenoid valve is controlled to be energized or deenergized;
[0020] By turning on or off the power of the solenoid valve, the compressed gas is controlled to enter or be discharged from the piston cavity of the cylinder, thereby driving the piston rod to perform reciprocating motion;
[0021] An electrical signal is provided to the solenoid valve through a cycle time set in a timer, wherein the electrical signal is used to indicate the frequency of the reciprocating motion of the piston rod.
[0022] Optionally, according to the pulse signals emitted by the solenoid valve and the toggle button, calculating the number of left toggle times and right toggle times of the steering joystick by the counter includes:
[0023] When the piston rod moves to one side of the cylinder, the toggle button sends a pulse signal;
[0024] When the piston rod moves leftward or rightward after returning to its original position, the solenoid valve sends out a pulse signal;
[0025] If the counter receives the pulse signals indicating the same direction sent by the toggle button and the solenoid valve, the toggle times in the direction are calculated.
[0026] The above-mentioned technical scheme provided by the embodiment of the present application has the following advantages compared with the prior art: the solenoid valve controls the piston rod of the cylinder to make reciprocating motion, thereby driving the steering joystick to move left and right, simulating the actual working mode of the steering joystick, and using a counter to record the number of times the joystick is moved left and right. When the set number of movements is reached, the mechanical properties of the steering joystick system are evaluated, thereby evaluating its service life, or after the steering joystick test system fails, its service life is evaluated according to the number of times the steering joystick is moved left and right. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.
[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0029] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.
[0030] Figure 1 A schematic diagram of the overall structure of a testing device for a steering joystick system provided in an embodiment of the present application;
[0031] Figure 2 A top view of a testing device for a steering lever system provided in an embodiment of the present application;
[0032] Figure 3 A flow chart of a testing method for a steering joystick system provided in an embodiment of the present application;
[0033] Figure 4 A schematic diagram of the overall process of a testing method for a steering joystick system provided in an embodiment of the present application;
[0034] Figure 5 A schematic diagram of the structure of a steering joystick test module provided in an embodiment of the present application;
[0035] Figure 6 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0037] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.
[0038] The present application provides an overall schematic diagram of a testing device for a steering joystick system, such as Figure 1 shown. Figure 2 FIG. 1 is a top view of the test device for the steering lever system, as shown in FIG. Figure 2 As shown, the device includes a control component and a mechanical motion component. The control component includes a solenoid valve and a counter. The mechanical motion component includes a cylinder, a steering lever and a toggle button. The cylinder is connected to the toggle button and the solenoid valve. The toggle button is connected to the steering lever. The counter is respectively connected to the solenoid valve, the toggle button and the steering lever.
[0039] like Figure 1 As shown, the device includes a fixing frame and an adjusting plate. The adjusting plate is located on the fixing frame. The steering lever is fixed to the adjusting plate by screws, which can ensure that the steering lever maintains a stable position during the detection process to avoid detection errors caused by movement or looseness. The adjusting plate can adjust the position of the steering lever as needed to match the movement stroke of the steering lever and the toggle button, ensuring that each operation of the toggle button can accurately trigger the turn signal of the steering lever.
[0040] The user presses the start button to start the test, connects to the AC 220V power supply, converts to DC 24V and outputs it to the starting system. The solenoid valve drives the piston rod of the cylinder to reciprocate by controlling the on and off of the gas circuit. The piston rod of the cylinder is fixedly connected to the toggle buckle, which is fixed to the steering lever by screws or buckles. The wiring terminals of the toggle buckle are electrically connected to the corresponding wiring terminals on the steering lever to form a complete circuit. When the piston rod reciprocates, it will drive the toggle buckle to reciprocate in the same direction. The toggle buckle transmits force to the steering lever, so that the steering lever is toggled left and right, and the steering light of the steering lever will also turn on accordingly. In this way, when the piston rod moves to the left, the left turn light of the steering lever will be turned on, and when the piston rod moves to the right, the right turn light of the steering lever will be turned on.
[0041] Among them, the toggle buckle is a key component connecting the steering lever and the piston rod, which directly affects the accuracy and reliability of the operation. The left and right movement stroke of the toggle buckle must be large enough to cover the operating range of the entire turn signal lever. The contact area between the toggle buckle and the lever must be moderate, ensuring that there is sufficient friction to achieve reliable operation, but not too large so as not to affect the efficiency of the overall system. The above accuracy and reliability are achieved through the adjustment plate.
[0042] When the piston rod moves from the middle position of the cylinder to a certain direction, the solenoid valve and the toggle button connected to the piston rod will send out pulse signals accordingly. Although both send out pulse signals, the meanings of the two pulse signals are different. The pulse signal of the solenoid valve indicates that the piston rod is moving in a certain direction, and the pulse signal of the toggle button indicates that the piston rod has been pushed to the absolute position on one side of the cylinder. The pulse signals of the solenoid valve and the toggle button both carry the direction of the piston rod's movement. The pulse signals of the solenoid valve and the toggle button are sent to the counter, and the counter determines the number of left and right toggle times of the steering lever based on the pulse signal.
[0043] Among them, the specific process of the solenoid valve driving the piston rod to do reciprocating motion is as follows: the solenoid valve in this application is a two-way solenoid valve, which usually has two working positions and two air inlets and outlets. When the solenoid valve is energized, the valve core changes position, thereby changing the direction of gas flow. Specifically, when not energized, the valve core of the two-way solenoid valve is in the default position, the air pressure in the cylinder remains unchanged, and the piston rod is stationary. When the solenoid valve is energized, the electromagnetic force acts on the valve core to cause it to move. The movement of the valve core changes the flow path of the gas, so that the gas can flow from the air inlet and reach the cylinder through the air outlet. Through the control of the solenoid valve, the gas flows from the compressed air source to a chamber of the cylinder. After the gas enters the cylinder, it pushes the piston to move. When the gas enters one side of the cylinder, the piston is pushed outward by the pressure, and the piston rod extends accordingly. For example, if the gas enters the left side of the cylinder, the piston rod extends to the right. When the solenoid valve is powered off, the valve core returns to the initial position, cutting off the flow of the gas, the gas pressure in the cylinder is released, and the piston rod stops moving. To retract the piston rod, another solenoid valve or another port of the same solenoid valve can be used to control the reverse gas flow. By switching the solenoid valve, the gas can enter the other side of the cylinder from the other port and push the piston to move in the opposite direction.
[0044] In the test device of the steering lever system, the solenoid valve controls the piston rod of the cylinder to make reciprocating motion, thereby driving the steering lever to move left and right. This can simulate the actual working mode of the steering lever, and a counter is used to record the number of times the lever is moved left and right. When the set number of movements is reached, the mechanical properties of the steering lever system are evaluated, thereby evaluating its service life. Or, after the steering lever test system fails, its service life is evaluated based on the number of times the steering lever is moved left and right.
[0045] The control component includes a relay, which is connected to the solenoid valve. The system sends a signal according to the control instruction to drive the relay to close or open, thereby controlling the power on or off of the solenoid valve. The relay also has an overload protection function. When the current exceeds the set value, the relay will automatically disconnect the circuit to prevent equipment damage.
[0046] The control component includes a timer, which is connected to the solenoid valve. The timer receives the command signal from the system, thereby obtaining the cycle time sent by the system. There is a timer circuit inside the timer, which sends out a pulse signal according to the set cycle time (such as once per second). After these pulse signals are amplified and filtered, they drive the solenoid valve to energize. By setting the cycle time of the timer, the present application can accurately control the energization frequency of the solenoid valve. The timer will record the specific time point and duration of each solenoid valve energization, thereby controlling the toggle frequency of the steering joystick. For example, if the cycle time is set to 1 second, the solenoid valve will be energized once in 1 second, thereby controlling the cylinder piston rod to reciprocate at a specific frequency.
[0047] In this application, the system first issues a command to drive the relay to close or open, and the change in the state of the relay then drives the timer to start timing. The timer energizes the solenoid valve according to the preset cycle time. After receiving the electrical signal, the solenoid valve controls the on and off of the air circuit, thereby driving the cylinder piston rod to reciprocate. The close cooperation between the relay, timer and solenoid valve ensures the smooth progress of the entire detection process. The signal transmission function of the relay ensures the start and stop of the system; the air circuit control function of the solenoid valve directly determines the movement state of the cylinder piston rod; the cycle control function of the timer ensures the movement frequency of the cylinder piston rod. The relay, timer and solenoid valve complete the control task through mutual cooperation in the steering lever detection device. This collaborative working mechanism improves the accuracy and reliability of the detection.
[0048] The counter includes a left counter and a right counter. When the piston rod extends, it drives the toggle button to toggle the steering lever to the left. At this time, the right counter records one time. When the piston rod contracts, it drives the toggle button to toggle the steering lever to the right. After the steering lever returns to its position, it is toggled to the right again. At this time, the left counter records one time, and so on. Of course, it is also possible that the left counter records one left turn when the steering lever is toggled to the left, and the left counter records one right turn when the steering lever is toggled to the right. This application does not limit the left-right correspondence between the steering lever and the counter.
[0049] Normally, the steering lever should be moved to the right after it is fully moved to the left, and then to the left again after it is fully moved to the right, and so on. In this way, there is always a difference of 1 count value between the left counter and the right counter. However, the steering lever may not be moved into place in a certain direction. In this case, the solenoid valve sends out a pulse signal normally, but the toggle button does not send out a pulse signal. The corresponding left counter or right counter does not receive two pulse signals and does not count. Then the count values of the steering lever in the two directions will widen the gap. At this time, the counter sends a disconnect signal to the relay, the relay is disconnected, the system shuts down, and an alarm is automatically issued.
[0050] For example, after the steering lever is moved to the left, the counter of the right counter is increased by one. At this time, the count value of the right counter is 2000, and the count value of the left counter is 1999. Under normal circumstances, after the steering lever is moved to the right, the count value of the left counter is increased by one to 2000. However, an abnormality occurs at this time. The steering lever is not moved to the right and is moved to the left again. At this time, the count value of the right counter is 2001, while the count value of the left counter is still 1999. The count value difference between the two counters is 2, which exceeds the set threshold. At this time, the system automatically alarms, controls the relay to disconnect, and the system shuts down.
[0051] In view of the above-mentioned testing device for the steering lever system, the present application provides a testing method for the steering lever system, which is applied to a control unit and is used to test the service life of the steering lever device, such as Figure 3 As shown, the following steps are included:
[0052] Step 301: Control the on / off of the gas circuit through the solenoid valve to drive the piston rod of the cylinder to reciprocate;
[0053] Step 302: The piston rod drives the toggle button to move back and forth, and controls the steering lever to move left and right;
[0054] Step 303: According to the pulse signals sent by the solenoid valve and the toggle button, the number of left toggle times and right toggle times of the steering lever are calculated by a counter;
[0055] Step 304: When the steering lever system fails, output the number of left-movement times and right-movement times of the steering lever.
[0056] A solenoid valve is a device that uses electromagnetic force to control the flow of fluid (such as gas or liquid). The solenoid valve controls the flow of compressed gas into or out of the piston cavity by turning itself on or off, thereby driving the piston rod of the cylinder to reciprocate. The reciprocating telescopic motion of the piston rod drives the toggle button to move left and right. When the toggle button is subjected to external force, the displacement of one end will be transmitted to the steering lever at the other end through the fulcrum. This force transmission method enables the steering lever to move in a predetermined direction and amplitude, and the turn signal of the steering lever will also be turned on and off accordingly.
[0057] The toggle button pushes the steering lever to reciprocate, which can be done through direct force or indirect force. The direct force is: when the toggle button is acted upon by compressed gas, its internal structure is deformed, directly pushing the steering lever to reciprocate. The indirect force is: the toggle button transmits force to the steering lever through a connector or other intermediate components, for example, the toggle button is driven to toggle the lever left and right through the telescopic movement of the cylinder piston rod.
[0058] When the piston rod moves to the right to the limit position of the cylinder, the right solenoid valve and the toggle button send pulse signals at the same time. Similarly, when the piston rod moves to the left to the limit position of the cylinder, the left solenoid valve and the toggle button send pulse signals at the same time. These pulse signals carry the movement direction information of the piston rod and are transmitted to the corresponding counter for processing and recording. For example, if the piston rod moves to the right to the limit position of the cylinder, the right solenoid valve and the toggle button send pulse signals to the left counter; if the piston rod moves to the left to the limit position of the cylinder, the left solenoid valve and the toggle button send pulse signals to the right counter.
[0059] The counter receives pulse signals from the solenoid valve and the toggle button, and processes and records the signals according to the preset logic. The counter counts the number of left and right toggle times of the steering joystick. For example, if a maximum of 5 left or right toggle times per minute is allowed, then the counter stops counting if more than 5 times are reached within one minute.
[0060] By accumulating and analyzing the number of operations, the durability and reliability of the steering lever can be evaluated. If it can still work normally after reaching the set number of times, it is considered that its mechanical performance is good; otherwise, it needs to be replaced or repaired. If the steering lever fails or has an abnormal situation during the test, its remaining service life and possible problems can be evaluated based on the number of times it is turned.
[0061] In this way, the counter continuously counts the number of times the steering lever is moved to the left and the number of times the steering lever is moved to the right. If the steering lever fails, it indicates a malfunction or the end of its service life. At this time, the counter outputs the number of times the steering lever is moved to the left and the number of times the steering lever is moved to the right, thereby testing the service life of the steering lever device.
[0062] As an optional implementation, the solenoid valve is used to control the on / off of the gas circuit, and the piston rod of the cylinder is driven to perform reciprocating motion, which includes the following steps:
[0063] Step 1: Control the power on or off of the solenoid valve by closing or opening the relay;
[0064] Step 2: By turning on or off the power of the solenoid valve, the compressed gas is controlled to enter or be discharged from the piston cavity of the cylinder, driving the piston rod to reciprocate;
[0065] Step 3: Provide an electrical signal to the solenoid valve through the cycle time set in the timer, wherein the electrical signal is used to indicate the frequency of the reciprocating motion of the piston rod.
[0066] After receiving the command signal from the system, the relay controls the on / off state of the circuit according to the preset logic. When the relay is closed, the circuit is energized and the solenoid valve is energized; when the relay is disconnected, the circuit is de-energized and the solenoid valve is de-energized. The solenoid valve controls the compressed gas to enter or discharge the cylinder piston cavity according to the state change of the relay, thereby driving the piston rod to reciprocate.
[0067] The timer records the length of each operation cycle according to the set cycle time. For example, a corresponding electrical signal is generated every second. The signal is used to indicate the frequency of the reciprocating motion of the piston rod. By adjusting the frequency of the reciprocating motion of the piston rod, the frequency of turning on the turn signal of the steering lever can be adjusted, that is, the operating speed of the steering lever can be adjusted.
[0068] The present application can accurately control the movement frequency and direction of the cylinder piston rod through the coordinated work of relays, solenoid valves and timers, thereby adjusting the operating speed of the steering lever. Setting the appropriate frequency can simulate the speed of manual use of the steering lever, so that the test process conforms to the actual use process and improves the accuracy of the test.
[0069] As an optional implementation, according to the pulse signals sent by the solenoid valve and the toggle button, counting the number of left toggle times and right toggle times of the steering joystick by a counter includes the following steps:
[0070] Step 1: When the piston rod moves to one side of the cylinder, the toggle button sends a pulse signal;
[0071] Step 2: When the piston rod moves left or right after returning to its original position, the solenoid valve sends a pulse signal;
[0072] Step 3: If the counter receives pulse signals indicating the same direction from the toggle button and the solenoid valve, the toggle times of the direction are calculated.
[0073] The pulse signal of the solenoid valve indicates that the piston rod is moving in a certain direction. When the piston rod starts to move in a certain direction, the solenoid valve sends a pulse signal according to the change in the movement state of the piston rod. This pulse signal indicates that the piston rod is moving in the specified direction, and the solenoid valve sends this pulse signal to the counter.
[0074] The pulse signal of the toggle buckle indicates that the piston rod has been pushed to the limit position on one side of the cylinder. When the piston rod reaches the limit position on one side of the cylinder, the toggle buckle sends a pulse signal according to the change of its mechanical structure. This pulse signal indicates that the piston rod has reached the limit position of the cylinder. The toggle buckle sends this pulse signal to the counter.
[0075] If the counter receives pulse signals from the solenoid valve and the toggle button within the set time, and the pulse signals of the two indicate the same movement direction, the counter processes and records the signals according to the preset logic and counts the number of toggles in that direction. If the counter receives only a pulse signal from one of the devices within the set time, indicating that the piston rod has not moved to the end of the cylinder, no counting is performed at this time.
[0076] In summary, after the counter receives the two pulse signals from the solenoid valve and the toggle button within the set time, it determines that the piston rod has indeed moved to the limit position of the cylinder in that direction, and then records the number of times the steering lever is toggled, ensuring the accuracy and reliability of the test results.
[0077] Based on the same technical concept, the present application provides a flow chart of a testing method for a steering lever system, such as Figure 4 As shown, the following steps are included.
[0078] Step 401: Fix the steering lever on the adjustment plate with screws, and adjust the position of the steering lever on the fixing frame through the adjustment plate so that the left and right movement of the toggle button can effectively toggle the turn signal of the steering lever.
[0079] Step 402: Press Start to start the test, connect the AC 20V power supply, convert the DC 24V output to the starting system, and the system sends signals to drive the relays in sequence according to the control instructions.
[0080] Step 403: The relay receives a command signal from the system to control the power on or off of the solenoid valve.
[0081] Step 404: The timer receives a command signal from the system and supplies power to the solenoid valve according to a set cycle time.
[0082] Step 405: The solenoid valve controls the compressed gas to enter or be discharged from the cylinder piston cavity, the cylinder piston rod performs reciprocating motion, and the frequency of the reciprocating motion of the piston rod is controlled according to the cycle time.
[0083] Step 406: The piston rod drives the toggle button to perform reciprocating motion, and the toggle button further drives the steering lever to toggle left and right.
[0084] Step 407: During the reciprocating motion of the piston rod, each time the piston rod moves to the extreme position on one side of the cylinder, the solenoid valve and the toggle button will send a pulse signal to the counter. When the piston rod moves to the extreme position on the left side of the cylinder, the right counter will record it once, and when the piston rod moves to the extreme position on the right side of the cylinder, the left counter will record it once.
[0085] Step 408: If any of the following three situations occurs, the system shuts down.
[0086] Step 4081: The count difference between the left counter and the right counter is greater than the set threshold, indicating that the piston rod has not moved to the limit position on one side of the cylinder, the device fails, and the system alarms.
[0087] Step 4082: When the total value of the left counter and the right counter reaches the set number of toggle times, the system shuts down.
[0088] Step 4083: The steering lever fails and the system shuts down.
[0089] This application conducts mechanical testing of the steering lever, analyzes and improves the steering lever system when it fails, improves the quality control of incoming parts inspection, reduces the failure rate, and saves after-sales maintenance costs. In addition, the device is simple to operate, easy to use, safe and reliable, easy to install and disassemble, and greatly improves work efficiency.
[0090] Based on the same technical concept, the present application also provides a steering joystick test module, such as Figure 5 As shown, it includes the following contents.
[0091] The driving module 501 is used to control the on-off of the gas circuit through the solenoid valve, and drive the piston rod of the cylinder to make reciprocating motion;
[0092] The control module 502 is used to drive the toggle button to move back and forth through the piston rod, and control the steering joystick to move left and right;
[0093] The calculation module 503 is used to calculate the number of left and right toggles of the steering lever through a counter according to the pulse signal sent by the solenoid valve and the toggle button;
[0094] The output module 504 is used to output the number of leftward and rightward movements of the steering lever when the steering lever system fails.
[0095] Optionally, the driving module 501 is used for:
[0096] By closing or opening the relay, the solenoid valve is energized or de-energized.
[0097] By turning the solenoid valve on or off, the compressed gas is controlled to enter or exit the piston chamber of the cylinder, driving the piston rod to reciprocate;
[0098] An electrical signal is provided to the solenoid valve through the cycle time set in the timer, wherein the electrical signal is used to indicate the frequency of the reciprocating motion of the piston rod.
[0099] Optionally, the calculation module 503 is used to:
[0100] When the piston rod moves to one side of the cylinder, the toggle button sends out a pulse signal;
[0101] When the piston rod moves left or right after returning to its original position, the solenoid valve sends a pulse signal;
[0102] If the counter receives pulse signals indicating the same direction from the toggle button and the solenoid valve, the toggle times of the direction are counted.
[0103] like Figure 6 As shown, an embodiment of the present application provides an electronic device, including a processor 601, a communication interface 602, a memory 603 and a communication bus 604, wherein the processor 601, the communication interface 602, and the memory 603 communicate with each other through the communication bus 604.
[0104] The memory 603 is used to store computer programs.
[0105] In one embodiment of the present application, the processor 601 is used to execute the program stored in the memory 603 to implement the test method of the steering joystick system provided by any of the above method embodiments, including:
[0106] The on-off of the gas circuit is controlled by the solenoid valve, driving the piston rod of the cylinder to make reciprocating motion;
[0107] The piston rod drives the toggle button to move back and forth, and controls the steering lever to move left and right;
[0108] According to the pulse signals sent by the solenoid valve and the toggle button, the number of left toggle and right toggle of the steering lever is counted by a counter;
[0109] When the steering lever system fails, the number of left and right movements of the steering lever is output.
[0110] Optionally, the on-off of the gas circuit is controlled by a solenoid valve to drive the piston rod of the cylinder to perform reciprocating motion, including:
[0111] By closing or opening the relay, the solenoid valve is energized or de-energized.
[0112] By turning on or off the power of the solenoid valve, the compressed gas is controlled to enter or exit the piston cavity of the cylinder, driving the piston rod to reciprocate;
[0113] An electrical signal is provided to the solenoid valve through the cycle time set in the timer, wherein the electrical signal is used to indicate the frequency of the reciprocating motion of the piston rod.
[0114] Optionally, according to the pulse signal sent by the solenoid valve and the toggle button, the number of left toggle times and right toggle times of the steering lever are calculated by a counter, including:
[0115] When the piston rod moves to one side of the cylinder, the toggle button sends out a pulse signal;
[0116] When the piston rod moves left or right after returning to its original position, the solenoid valve sends a pulse signal;
[0117] If the counter receives pulse signals indicating the same direction from the toggle button and the solenoid valve, the toggle times of the direction are counted.
[0118] An embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the method for testing a steering joystick system provided in any of the aforementioned method embodiments are implemented.
[0119] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0120] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a general hardware platform, and of course, by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the relevant technology can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.
[0121] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.
[0122] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A testing device for a steering lever system, characterized in that: The device comprises a control component and a mechanical motion component, wherein the control component comprises a solenoid valve and a counter, and the mechanical motion component comprises a cylinder, a steering lever and a toggle button, wherein the cylinder is connected to the toggle button and the solenoid valve, the toggle button is connected to the steering lever, and the counter is respectively connected to the solenoid valve, the toggle button and the steering lever; The solenoid valve drives the piston rod of the cylinder to perform reciprocating motion by controlling the on and off of the air circuit, and the steering lever is moved left or right along with the reciprocating motion of the piston rod. The solenoid valve and the toggle button send out a pulse signal according to the movement of the piston rod, and the counter calculates the number of left and right movements of the steering lever according to the pulse signal.
2. The device according to claim 1, characterized in that The control component includes a relay; The relay is connected to the solenoid valve and is used to control the power on or off of the solenoid valve according to a control instruction.
3. The device according to claim 2, characterized in that The control component includes a timer; The timer is connected to the solenoid valve and is used to energize the solenoid valve according to a set cycle time, so that the solenoid valve controls the frequency of the reciprocating motion of the piston rod according to the cycle time.
4. The device according to claim 2, characterized in that The counter includes a left counter and a right counter, and the left counter and the right counter are respectively connected to the relay, and are used to control the relay to be disconnected when the difference of the count values is greater than a set threshold.
5. The device according to claim 4, characterized in that When the steering lever is moved to the left after returning to its position, the right counter records a right turn, and when the steering lever is moved to the right after returning to its position, the left counter records a left turn.
6. The device according to claim 1, characterized in that The piston rod drives the toggle button to perform reciprocating motion, and the toggle button transmits force to the steering lever to enable the steering lever to be toggled left and right.
7. The device according to claim 1, characterized in that The device also includes an adjustment plate, which is located on a fixed frame of the device. The steering lever is arranged at a set position on the adjustment plate, wherein the set position is used to enable the left and right movement of the toggle button to trigger the turn signal of the steering lever.
8. A method for testing a steering lever system applied to the testing device for a steering lever system according to claim 1, characterized in that: The method comprises: The on-off of the gas circuit is controlled by the solenoid valve, driving the piston rod of the cylinder to make reciprocating motion; The piston rod drives the toggle button to move back and forth, and controls the steering lever to move left and right; According to the pulse signals sent by the solenoid valve and the toggle button, the counter calculates the number of left toggle times and right toggle times of the steering lever; When the steering lever system fails, the number of left-movement times and right-movement times of the steering lever are output.
9. The method according to claim 8, characterized in that The solenoid valve controls the on-off of the gas circuit and drives the piston rod of the cylinder to do reciprocating motion, including: By closing or opening the relay, the solenoid valve is controlled to be energized or deenergized; By turning on or off the power of the solenoid valve, the compressed gas is controlled to enter or be discharged from the piston cavity of the cylinder, thereby driving the piston rod to perform reciprocating motion; An electrical signal is provided to the solenoid valve through a cycle time set in a timer, wherein the electrical signal is used to indicate the frequency of the reciprocating motion of the piston rod.
10. The method according to claim 8, characterized in that According to the pulse signals emitted by the solenoid valve and the toggle button, the counter is used to calculate the number of left toggle times and right toggle times of the steering lever, including: When the piston rod moves to one side of the cylinder, the toggle button sends a pulse signal; When the piston rod moves leftward or rightward after returning to its original position, the solenoid valve sends out a pulse signal; If the counter receives the pulse signals indicating the same direction sent by the toggle button and the solenoid valve, the toggle times in the direction are calculated.